Cylinder and cylinder-cap



(No Model.)

B. A. OWEN. CYLINDER AND CYLINDER GAP.

No. 486,680. Patented Nov. 22, 1892.

a V II E Z-T I T J E b III :5 vfiwao'eo #1 am THE Noam: Pzrzws 0a..FNDTO-LIYHQ. wAsmNo UNITED STATES PATENT Genres.

ROBERT A. OWEN, OF CORAL, MICHIGAN.

CYLINDER AND CYLINDER-CAP.

SPECIFICATION forming part of Letters Patent No. 486,680, dated November22, 1892.

Application filed March 8, 1892. Serial No. 423,572. (No model.)

To all whom, it may concern: united thereto, as bya union G. At theupper Be it known that I, ROBERT A. OWEN,a citiend the coupling isconstructed with an enzen of the United States, residing at Coral,larged extremity, as shown at F, passed 5 county of Montcalm, State ofMichigan, have freely through the lower end of the cap, and 5 invented acertain new and useful Improvewith a flanged head F The end of thecylment in Cylinder-Caps and Cylinders; and I inder-cap adjacent theretois formed with an declare the following to be a full, clear, andexinwardly-directed flange or shoulder, as shown act description of theinvention, such as will at (1 upon which said head rests. Before enableothers skilled in the art to which it apthe two parts d d of thecylinder-cap are 10 pertains to make and use the same, reference united,as at 01 the coupling F is slipped being had to the accompanyingdrawings, down through the lower end of the cap. A which form a part ofthis specification. rubber gasket or other suitable packing-ring Myinvention has for its object certain new H is interposed between theflange d and the and useful improvements in a cylinder-cap head F of thecoupling, the head seating on I 5 and cylinder, and relates moreparticularly said gasket when in place. The enlarged to improvements inpump-cylinder caps, the end F of the coupling is screw-threaded on itspurpose of my invention being to facilitate exterior to receive alock-nutJ, which, when the removal of the check-valve or plungertightened up, will force the head F down valve without the necessity ofremoving the firmly upon the gasket, rendering the base 20 pump from thewell therefor or disturbing its of the cap water-tight in its connectionwith position, thereby saving time and expense in the coupling. Thelower end of the coupmaking needed repairs. ling is of less diameterthan the screw- To this end my invention consists of the threaded endthereof, as shown. From this devices and appliances, their construction,construction it will be evident that when the 2 5 combination,andarrangement, as hereinafter nut J is loosened up sufficiently it maydrop described and claimed, and illustrated in the down upon the unionG, permittlng the oylaccompanying drawings, in which inder-cap to bedisunited from the cylinder,

Figure 1 is a vertical section illustrating so as to afford ready accessto the valves. my invention. Fig. 2 is across-section on the Tofacilitate unscrewing the cap from the 0 line 0050, Fig. 1. Fig. 3 is across-section on cylinder, the lower end of the cap may be the line 1/y, gsquared, as indicated in Fig. 3, to permit the I carry out myinvention as follows: engagement of an ordinary wrench therewith, Arepresents a pumpcylinder. B is the or a portion of the cap may beconstructed check-valve located at its lower end below with a rib d tofacilitate the engagement of 5 the plunger 0. a different form of wrenchtherewith. It is D represents my improved cylinder-cap, thus clear thatwhen the nut J is loosened preferably constructed in two separable partsand dropped down the cylinder-cap may be d d, united in any suitablemanner intermeunscrewed from the cylinder and lowered 9o diate theirextremities, as shown, for examdownward on the coupling F, affordingaccess 7 4o ple, at 01 to the check-valve B. Should it be desired At theend adjacent to the end of the cylto repair the plunger 0 or gain accessthereto, inder A the'cap has a removable engagement the plunger-rod Cmay be disconnected from with the cylinder-as, for instance, byascrewthepump-handle O at the joint 0 when the 9 5 threaded connection shown ata, the upper plunger itself may readily be slipped down 5 end of the capbeing constructed with an upthrough the lower end of the cylinderwithwardly-extended screw-threaded flange 01 out disturbing other partsof the pump. In and also with a valve-seat cl. this manner repairs mayreadily, convenient- E denotes the usual pump-tube communily, andquickly be made with a considerable IOO eating with the pump-cylinder.Iconnect the saving of time, labor, and expense, whereas 50 tube E withthe cap D by means of a coupheretofore it has been necessary to removeling F. This coupling is made of a suitable the entire pump from thewell to make such size at the end adjacent to the tube E, to be repairs.

The plunger 0 is of ordinary construction, provided with an upperleather 0, a lower leather 0', and a follower 0 To facilitate theengagementof the plunger in the cylinder, Iprefer to flare or enlargethe lower end of the cylinder, as shown at a, Fig. 1. \Vhere thecylinder is of uniform size throughout, there is experiencedconsiderable difficulty in entering the upper leather, since the upperleather turns up; but by flaring the cylinder at its lower end, asshown,the entire plunger is readily entered into the cylinder.

No tools are required for getting at the valves to make the necessaryrepairs, except an ordinary wrench.

I have shown and described my improved cap engaged with the lower end ofthe cylinder; but I would have it understood that the cap may be appliedto either end or on both ends, as may be desired.

The cap is of economical construction. Its use dispenses with thenecessity of disconnecting any pipes.

What I claim as my invention is 1. The combination, with a pump-cylinderprovided with a plunger and check-valve, of a cylinder-cap having adetachable engagement with the end of the pump-cylinder adjacent to thecheck-valve, a coupling loosely passed through the opposite end of thecylinder-cap, and a lock-nut to tighten the engagement of the couplingwith the cylinder-cap, the diameter of said coupling reduced beyond theengagement of the nut therewith to allow the loosened nut anddisconnected cylinder-cap to slip down over the reduced portion of thecoupling and afford access to the check-valve and plunger of thepumpcylinder, substantially as described.

2. The combination, with a pump-cylinder provided with a plunger andcheck-valve, of a cylinder-cap detachably engaged with the end of thecylinder, said cap constructed with a valve-seat at the end adjacent tosaid cylinder and with an inwardly-projected shoulder d at the oppositeend, a coupling F, passed through one end of said cap and extendingoutward therefrom, said coupling provided with a head seated upon saidshoulder, and a lock-nuthaving a screw-threaded engagement with saidcoupling adjacent to the corresponding end of the cap, the diameter ofsaid coupling exterior to said cap reduced below the screw-threadedengagement of the nut therewith to allow the loosened nut andcylinder-cap to slip down over the reduced portion of the coupling andthereby afford access to the check-valve and plunger, substantially asdescribed. 7

3. The combination, with a pump-cylinder provided with a plunger andcheck-valve, of a cylinder-cap having a direct screw-threaded engagementwith the cylinder, said cap constructed with a valve-seat for thecheck-valve and with an interior shoulder at its opposite end, acoupling F, passed loosely through the shouldered end of the cap,provided with a head seated upon said shoulder, a gasket located betweensaid shoulder and the head of the coupling, and a lock-nut having athreaded engagement with the coupling to tighten its head upon thegasket, the diameter of said coupling reduced below the threadedengagement of the lock-nut therewith to allow the loosened nut andcylinder cap to slip down over the reduced portion of the coupling, theloosening of the cylinder-cap affording direct access to the check-valveand plunger, substantially as described.

1-. The combination, with a pump-cylinder provided with a check-valveand plunger, of a cylinder-cap made in two parts united, one partconstructed with a contracted valve-seat for the check-valve and havingascrew-threaded engagement with the adjacent end of the pump-cylinder,the other part of said cylindercap constructed with aninwardly-projecting shoulder, a coupling F, passed through theshouldered end of said cap and projecting outward therefrom, saidcoupling provided with a flanged head seated upon said shoulder, and alock-nut having a threaded engagement with said coupling adjacent to thecorresponding end of the cap to seat the head firmly upon said shoulder,the diameter of said coupling reduced below the threaded portion thereofto allow the loosened nut and cylinder-cap to slip down over the reducedportion of the coupling, thereby aifording access to said check-valveand plunger, substantially as described.

In testimony whereof I sign this specification in the presence of twowitnesses.

ROBERT A. OWEN.

Witnesses:

N. S. WRIGHT, JOHN F. MILLER.

